Cane mill



Oct. 7, 1952 Filed March '7, 1947 P. v. TlPPET CANE MILL 3 Sheets-Sheet l Oct. 7, 1952 P. v. TIPPET 2,613,118

CANE MILL Filed March 7, 1947 3 Sheets-Sheet 2 P. V. TlPPET Oct. 7, 1952 CANE MILL 3 Sheets-Sheet 3 Filed March 7, 1947 their working, positions;

Patented Oct. 7, 1952 UNITED STATES PATENT OFFICE CANE MILL Philip Tippet, Ansonia, Conn., assignor toFarrel-Birmingham Company, ,Incorporated, An-

sonia, Conn., a corporation otCo'nnecticut 1 Application March 7, 1947, Serial No. 732,967

V 1. This inventionrelates to cane mills, andmore particularly to three-roller millssuch as commonly used in sugar-cane grinding installations. In such mills there is a cane roll or feeding-ro11,: a top roll, and a bagasse roll. 7

The present invention has to do primarilywith the provisions whereby the side rolls'ythatis to say, the cane roll andthe bagasse roll, are held in the housings. Conditions arise where it is necessary to remove one or bothside rolls on short notice, as where a piece of tramp iron has become lodged in the mill, and to install a new roll. Owing to the rapid deterioration'of the cane after'cutting, it is highly importantthat such changes or shifts be accomplished with maximum rapidity. One of the objects of the present invention is to provide a side-roll mounting-that will meet these conditions.

Another object is toprovlde a cane mill having a hinged side cap so constructed and arranged that the removal of the roll and the replacement thereof'by a new roll can be accomplished with maximum convenience as well as speed, the amount of manual labor required in connection with the replacement of a roll being decreased to a marked extent, and it being ung necessary for the workmen to lift or carry heav'yparts of the assemblage. v Another object is to provide a structure of this kind inwhich a side cap, hinged at the lower part, can be quickly released and'swung; downward for the removal of the mlLandthe roll then-shifted to aposition in' which it-can be lifted by a crane; after which a newroll can be installed in an equallyconvenient and rapid manner. In the accompanying drawings: l Fig.1is a side elevation of a cane mill em bodying my improvements, showing the rollsin 10 Claims. (01. 308-22) Fig. 2" is an enlarged edge view looking from;

with the rollin a position to be lifted out of the mill; v i Fig. Bis a section on line 66 of Fig.5; Fig. 'Iis asection on line 1-1 of Fig.5; "Fig. '7 is a section on line I 1 of Fig. 5; and

Fig. 8 is an inner face view of the cap member. The present improvements are shown in connection with a three-roller sugar-cane mill havingja' pair of housings in which are mounted in the usual triangular arrangement a cane roll, a top'roll, and a bagasse roll. The first and the third of these rolls, which are known as side rolls, are illustrated as having mountings embodying the present improvements. In each case there is a side cap pivoted at its lower part to the housing, and having means adjacent its upper part whereby it can be locked or fastened to the housing in the operative position so as to hold the side box in: position within the housing recess, thearrangement being such that, when the upper end of the cap is released from the housing, the cap can be swung downwardly to a substantially horizontal position, after which the side box can be moved laterally out of the housing-recess to a position in which the roll can be lifted out of the mill by a suitable crane, the. end of the roll being supported in the meantime upon the side cap, and the side cap in. turn being-supportedfrom the mill structure in the manner hereinafter described. In the case illustrated the two side caps are of identical structure, and therefore a description of one of them will sufiice, and it will be noted that in this particular casethe roll mounting which is illus-- trated in detail is that of the bagasse roll shown at the-rightof'Fig. 1. The mounting is shown in detail in connection with only one of the housings, but it will be understood that an identical structure can be used in connection with the other housing.

. In thedrawings', the necks of the cane roll, top roll, and-bagasse roll are indicated respectively at Ii], II and I2, these being supported within a housing 13 having lower recesses Idand I5 for the side rolls. tion used for mounting the bagasse roll; the roll neck is received in a side box [6 which is movable laterally in the recess I5, and is held in adjusted position by means including a side cap l'l.

theside .cap can swing down by gravity to the position shown in Fig. 5, and canbe supported in that'position from the girder bed which extends'laterally from the housing base, and when In a typical construe-- This :side cap, as above mentioned, ispivoted or hinged at its lower part to the -hous-. ing, as indicated at Land is provided adjacent its upper end with means whereby the upper end can be fastened or locked to'the housing in areleasable manner, as hereinafter described. When the upper end of the side cap is released,-

3 the cap is in this position the side box can be slid laterally onto the cap, so as to be in a positiolrli such that the roll can be lifted out of the mi The side box can be adjusted in the housing recess l5 by an adjusting screw l9 having a mounting in the cap, and the cap is also provided with a hold-back;bolt' 2il,zand these-members can be of any preferred kind. The means for fastening the upper end of the cap to the housing comprises an eye bolt 2i slidably related to the upper end portion of the cap and having an eye adapted to be engaged by a fastening pin 22 slidable in a bore of the housing. The pivot means "provided at the lower end of the cap, indicated at' l 8..'comprises a pin passing through the lower extremity of the cap and through housing lugs :between which said extremity is inserted. The girder bed which supports the cap when the latter is in the lowered position is indicated at 23.

Refer-ring now to the details, the 'irecess 15, which receives theside boxzandwhe rollmeckrsupported therein, has a "mouth portion "which is opened by the lowering of the sidescap to theuposition f Fig. 5, and the floweripart'iof :the' recess is defined by a horizontal-surface 24 engaging the bottom 25 0f the side box, the sideibox being provided with flanges 25 which'aguirle :it as his moved along the bottom :of the housing recess, said flanges being extended over the taco usuriaces of the housing. The side box is provided with the usual bearing material ifortmountin'g the roll neck, and it is provided with the usual iboss 21 against which the adjusting screw ilil z'impinges. The housing l'3'isiin the form ofaicastingoored out for lightness, and having lugs 28 ""Whl'lCh'lpID-.

a groove 30 in the pivot pin or hinge pin-so asto' complete the*assemblyatthehinge'of the :cap.

The cap member IT is'made' in the-form'io fian. elongated body -o-f--'substantially the same width.

as the housing adapted to extend 'overlalnd enclose the notch-like bearing space that ispr'oe vided in the housing. At its inner part the'cap.

body preferably has the f-ormalti'on shown in th'e drawings, the body having a fiat inner-"aface that isadapted to abut a'tits lower part averticaltface 31 provided upon the housing ina region immediately below the side boxrecess. This flat face-as shown in Fig. 3, extends upwardly almost Ttoilhe:

top of the side box recess to a line indicated-at 1'32,

and from this line-the-bap body-' is recessed sov as to provide an upper 'end portion 33 or li educed thickness adapted to abut the housing-portionthat defines the upper part of theside box recess or notch. It is through this reduced portion 33 of the cap body'th'at the eye bolt-i=1 passes. 'ilh'e eye bolt has a shank portion SW-that extends through a bore 35 'provided in thecap body,:and the inner end of the shank porti'on fl has the eye '36 formed thereon. Theshankzpor'tion IM-ha's at the opposite end a threaded: portion 3'] upon which 'is a nut 88 adapted to screw'up aga'inst the outer face of the cap body so as :to the upper end of the cap body nrmlyxagainst the housing. g l

It will be noted from Fig.3 that the. housing, in that portion adjacent thenupper'ipart of "the side box recess, is extended sosas-tosprovide :an.

abutment against which the upperarecessed. end

of the cap body will seat, said abutment having a generally rectangular opening 39 leading to its outer face, in which the eye 36 is received. In the assembled position the abutment, which is indicated at 40, is disposed within the recess formed by reducing the thickness of the cap body, which recess lies above the line 32 previously mentionedand is 'indicatedin the drawings at 4 l. The abutment 40 has upper, lower *and side walls surrounding the opening 39, and the upper part 'o'f the abutment has a setback to receive a lip '42 provided upon the inner face of the body or block at its upper extremity. From the line 32 'the inner 'faoeof the block is sloped, as shown at 1'3, to a line where the flat bottom of recess M is reached, and there is thus provided a construction in which, when the block is swung upwardly from the position of Fig. toward the position of Fig. 3,-the block will not meet interference but will, on the other hand, be tightly cammed into place against the :lower part of the abutment 1 40. When this occursfthe lip-42 fits :closely into the recess orsetback in'the upper .partofthe abutment.

The eye 36 of the eye bolt is ,preferably ot generally elliptical shape, the same having a round hole to receive the round lockingpin 22, and the sides of the eye being flattened-as shown, so as to lie in :close proximity-to the side walls of .the abutment. By thisoarrangement the eye bolt, when entered into theopeningor hole 35, is prevented from turning,-which facilitates the insertion ofthe locking :pin .22. It will :also be .notedfrom Fig. 3 that, when the-eye boltis-entered into bolt by resting upon the floor portion of theabultment will be positioned at the correct "level for receiving the locking pin. Between the eyegzuwoper and the shank portion 34, a portion 34* of intermediate thickness is provided on the .bolt, and this portion provides a shoulder that is adapted to abut the cap body for the purpose of limiting the movement of the eye bolt-in the bore 35.

The girder bed -23 in this present embodiment is :bolted to the mill housing, and-is of cored-out structure and has an upper portion that .re-'- ceive the adjusting screw and the lower portion vof the eye bolt when'the cap vis-lowered to the .position of Fig. 5. For this purpose the girder bed has a top wall 44 provided with a longitudinal opening 45 that under normal conditions is closed by a plate. Thisplate may be removed before the eap is lowered :so as to permit the adjusting screw and the eye bolt to extend .down

1 into the girder bodes shown inFig. 5,,when the benoted that when the cap ishorizontal, its inner face is in line with the floonofthe recess 'in.3the housing, and this permits the. side box to be s'lld laterally to a position in which it rests on the leap.

In this position the roll is clearlof vIthe'housing and can be removed from themfll byv astra'ight wrench on the .nut 38 ,and uses .a sledge to loosen the nut about one turn. When thi-soperati'on is taking place the eye bolt is held against turning by the provisions previously described. IOn .re-

leasing the nut in this manner, the pressureon' the eye-bolt :pin 22 is relieved, and thejpin'fca'n be moved tothe releasing position shown iniFi'g.

6 'by'in'serting a pinch barunder its head or in 1 some other suitable manner. have to be'entirely removed from the housing for the purpose of releasing the eye bolt, and this is an advantage-in that there are no loose pieces to be handled. The next step is to attach a sling from'an overhead" crane to the upper part of the cap, the attachment being-effected by suitable projecting members on the cap such as the headed projections 48'. The adjusting screw is isscrewed back in the cap-so that its nose does not project beyond the flat inner surface. The hold-back bolt 20 is removed from the cap, this being such a light piece that'it can be readily handled? by the attendant. The cover plate 45, which is :also a light piece-is taken off of the topof thegirder bed. All is then ready for lowerin'g'the cap to the position shown inFig. 5, the holding bar "or 'block 41 being used in the mannerpreviously described.

It is believed that the operations incident to the substitution of a new roll will be clear from the previous description. 1 In this operation, the cap acts as a table upon which the adjacent roll bearing is received preliminary .to being slid into position in the housing. In this movement the side boxis effectively guided, inasmuch as the depending side flanges on the sidebox co -act with the side faces of the cap. These side faces are spaced from each other at substantially the same distance as are the side faces of the housin adjacent the floor of the side box recess.

It will be apparent that the described construction considerably expedites the replacement of side rolls, which is a matter of great importance forthe reasons previously noted. Another advantage arises from the convenience with which the necessary operations can be performed by the workmen. The workmen are not required to lift and move heavy and massive parts that are characteristic of sugar mill construction; The construction described is not only one in which the cap when lowered forms atable on the same level as the housing jaw defining the lower boundary oi the side recess, but is one in which the mill housing in the general sense of the term is adapted to support the cap very effectively in the lowered position, notwithstanding the great weight placed upon it. It is entirely unnecessary to construct with lumber or otherwise an improvised support for the roll.

It will be noted that when the cap is in the lowered position, the shouldered portion lid under the eye of the eye bolt rests against the upper or inner surface of the cap, in the manner shown in Fig. 5. The eye bolt associated with the cap provides, in connection with its locking pin and the associated housing parts, a fastening assembly of great efficacy, as well as a structure that is very readily demountable. The eye bolt is mounted in the cap so that the bolt has a limited sliding movement transversely of the cap, and the eye bolt is permanently associated with the cap in the sense that it is not'necessa-ry to remove it from the cap when the latter is shifted to the roll-supporting position. This is obviously a great advantage from the standpoint of convenient operation, and also from the standpoint that in sugar-mill practice the reduction of the number of separate or loose parts is highly desirable. As the cap is lowered to the roll-supporting position, the outer or lower end of the eye bolt moves into a recess in the bed without requiring special attention.

The pin does not only one embodiment or the invention is shown herein, but it is understood that. various.

modifications and changes may be made without departing from the principles of the invention or the scope of the claims.

What I claim is:

1. In a cane 'mill, the combination. of a hous ing having a laterally facing open-mouthed recess leading to a side edge of-the housing, a cap hinged to the housing below said recess and swingable on its hinge toclose said recess and having its upper end abutted against the housing above the recess, and means providing a detachable fastening betweenthe upper end of said cap and the housing, the housing having provision for supporting said cap when the latter is swung downwardly, said recess having a floor portion for supporting a bearing box, and said cap having a portion which when the cap is in the lowered position serves asa continuation of said fioor portion ontowhich the bearing box can be moved. t

2. Ina cane mill, thecombination of a housing having a laterally facingopen-mouthed recess leading to a side edge of the housing, a cap hinged to th housing below said recess and swingable on its hingeto close said recess and having its upper end-abutted against the housing above the recess, and means providing a decess leading to a side edge of the housing, a cap hinged to the housing below said recess and swingableon its hinge to close said recess and having its upper end abutted against the hous ing above the recess, and means providing a. detachable fastening between the upper end of said cap and the housing, the housing having provision for supporting said cap when the latter is swung downwardly, said recess having a floor portion for supporting a bearing box, and said cap having a portion which when the cap is in the lowered position serves as a continuation of said floor portion onto which the bearing box can be moved, said means providing a detachable iastening including an eye bolt carried by the cap, said eye bolt being mounted in the body of the cap so that it can have a limited sliding movement.

4. In a cane mill, a housing having a bearing receiving recess leading laterally inwardly from one side edge, a cap hinged at one end to the housing below the recess and adapted to be swung upwardly to close the recess, and means lncluding an eye bolt carried by the cap adjacent its free end for connecting the free end of the cap to the housing, said eye bolt being received and held in a transverse bore provided in the cap between the ends of the cap.

5. In a cane mill, a housing having a bearingreceiving recess leading laterally inwardly from one side edge, a cap hinged at one end to the housing below the recess and adapted to be swun upwardly to close the recess, and means includ ing ameye .bo'lt ;;cerrie1i by the can: edit-cent; its

free end for; conneetingthez free.-.end: of: the: can

to: the; housing; said. eyeabolt; being. received. and. heldin; a. transverse bore; extending;- through the; cap between the ends of the; can: and, arranged. to have a limited sliding movement. in; said bore when: the upper end: of. the: can; is; released .from the, housin .6;.In .a. device such. as; described" anotched. housingzandacap hinged at. one.end:forclosing, thenotch. in the. housing, the; free end portion of. the can; carrying an. inwardly projecting. eye, bolt: received in a. socket.- provided. in. the nous-- ing, and a. locking. pin: insertable. into the eye of the eye. bolt for. securing; the. can in. assembled position. said. eyev bolt having. a shank disposed and. held in a. bore. through the. canhetween. the. ends of .the caphtheishankrbeing provided with. threadsat the. outer sideof the: cap and. having a tightening, nut engaging said. threads and. said shank. having at the. inner. side. of? the, cap a. shoulder adapted to engage the cap whenthe. latter is swung downwardly to a certain extent.

7'. In av device. such. as described, a housing having a. 'hearing=receiving notch leading to a side edgethereoflanda cap hinged to. the housing adjacent the lower end" of the cap and having an; upper free end adapted to be fastened detachably to the-"housingwith the cap in bridgingv relation to the notch, the housing being provided' with a bed' portion'adaptedto. support the can while the latter is-in a: lowered substantially" horizontal position; the cap-having arr adjusting" with: a bed portion adapted to suppertthe-capwhile the-latter i's irr aloweredsubstantially-hori zontal position, the cap havinganadjusting screw "extendedz'through it. andalso having, near. its free. end an externally. projecting fastening boltyfor. the; cap,. the; housing bed; being formed toreoeive parts of the-adiustingz screw and. the.

fastening. bolt. when. the can is. in. the. lowered. position.

9, Ina device-such as.-deser1bed,,ahousinghaving. ailaterali notch. leading, inwardly from. one. sideedge, a. hinged. cap. for. closing saidnotch.

- the; hingeoi. the-cap being located adiacentthe lower part. of the,notch,, the; lower. part. of. the.

notch providing a. fioor. for a side. box. and; the can-when. lowered. providing a continuation 01 said floor, and. a, side: box having a base. and uidemeans associated with. the.'base for guide ingit along. said floor and said. continuation.

1.0.. A cane. mill having, ahousing. provided with. a bearing-receiving, notch-leading to asidlaedse. thereof, a cap for. bridging.saidnotchhinged to the housing adjacent. the, lower end. 01. the. cap and having an upper, free end adapted to be fasteneddetachably tothehousing.saidicanhaving. an. endwise. adjustable. member extending. therethrough and. projecting. from, the outer face of the, cap, and a bed portion on said housing adaptedto supportthe. cap from beneath while thelatter, is. in. a lowered. substantially horizon.- taL position, said bed portion. being formed to clear. saidadjustable. memberwhenthe capis in theloweredposition.

REFERENCES CITED" The.-.following, references, are of record. in. the.-

- flleof this patent:

UNITED STATES- PATENTS.

Number Name- Date 1,232,170 Aubin Ju1y'3, 1917 1,251,025 Hind D.ec. 25,, 1917 1,351,117 Newhall Aug; 31, 1920' 1,752,533 Maxwell Apr. 1, 1930' 1,765,322 Brown June 17, 1930 1,844,877 Wentzel' Feb. 9, 1932 2,078,003' Klein Apr; 20, 1937 2,115,236, Romaine: Apr; 26; 1938 

